./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31d5f3a14d915ecc08c5dc9b9c0c33fc37690ec404e8b1546bed720bc4205a6b --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 19:33:12,311 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 19:33:12,365 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-16 19:33:12,368 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 19:33:12,371 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 19:33:12,388 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 19:33:12,388 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 19:33:12,388 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 19:33:12,389 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 19:33:12,389 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 19:33:12,389 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 19:33:12,389 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 19:33:12,389 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 19:33:12,389 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 19:33:12,389 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 19:33:12,389 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 19:33:12,389 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 19:33:12,389 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 19:33:12,389 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-16 19:33:12,389 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 19:33:12,389 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 19:33:12,389 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 19:33:12,389 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 19:33:12,389 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 19:33:12,390 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 19:33:12,390 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 19:33:12,390 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 19:33:12,390 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 19:33:12,390 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 19:33:12,390 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 19:33:12,390 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 19:33:12,390 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 19:33:12,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 19:33:12,390 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 19:33:12,390 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 19:33:12,390 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 19:33:12,390 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 19:33:12,390 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-16 19:33:12,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-16 19:33:12,390 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 19:33:12,390 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 19:33:12,390 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 19:33:12,390 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 19:33:12,390 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31d5f3a14d915ecc08c5dc9b9c0c33fc37690ec404e8b1546bed720bc4205a6b [2025-03-16 19:33:12,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 19:33:12,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 19:33:12,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 19:33:12,642 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 19:33:12,642 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 19:33:12,644 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c [2025-03-16 19:33:13,860 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0403ebcb/b8f073e122ea44c19e8c695ed0f35173/FLAG63b89bb78 [2025-03-16 19:33:14,115 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 19:33:14,116 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c [2025-03-16 19:33:14,127 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0403ebcb/b8f073e122ea44c19e8c695ed0f35173/FLAG63b89bb78 [2025-03-16 19:33:14,146 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0403ebcb/b8f073e122ea44c19e8c695ed0f35173 [2025-03-16 19:33:14,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 19:33:14,151 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 19:33:14,153 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 19:33:14,153 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 19:33:14,156 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 19:33:14,157 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 07:33:14" (1/1) ... [2025-03-16 19:33:14,158 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf649a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:33:14, skipping insertion in model container [2025-03-16 19:33:14,159 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 07:33:14" (1/1) ... [2025-03-16 19:33:14,196 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 19:33:14,418 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c[13904,13917] [2025-03-16 19:33:14,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 19:33:14,500 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 19:33:14,548 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c[13904,13917] [2025-03-16 19:33:14,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 19:33:14,596 INFO L204 MainTranslator]: Completed translation [2025-03-16 19:33:14,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:33:14 WrapperNode [2025-03-16 19:33:14,596 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 19:33:14,597 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 19:33:14,597 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 19:33:14,597 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 19:33:14,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:33:14" (1/1) ... [2025-03-16 19:33:14,618 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:33:14" (1/1) ... [2025-03-16 19:33:14,662 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1275 [2025-03-16 19:33:14,663 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 19:33:14,663 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 19:33:14,663 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 19:33:14,663 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 19:33:14,673 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:33:14" (1/1) ... [2025-03-16 19:33:14,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:33:14" (1/1) ... [2025-03-16 19:33:14,679 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:33:14" (1/1) ... [2025-03-16 19:33:14,706 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-16 19:33:14,706 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:33:14" (1/1) ... [2025-03-16 19:33:14,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:33:14" (1/1) ... [2025-03-16 19:33:14,722 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:33:14" (1/1) ... [2025-03-16 19:33:14,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:33:14" (1/1) ... [2025-03-16 19:33:14,725 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:33:14" (1/1) ... [2025-03-16 19:33:14,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:33:14" (1/1) ... [2025-03-16 19:33:14,737 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 19:33:14,742 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 19:33:14,742 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 19:33:14,742 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 19:33:14,743 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:33:14" (1/1) ... [2025-03-16 19:33:14,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 19:33:14,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 19:33:14,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-16 19:33:14,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-16 19:33:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 19:33:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-16 19:33:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 19:33:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 19:33:14,905 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 19:33:14,907 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 19:33:15,721 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L366: havoc main_~node3__m3~1#1; [2025-03-16 19:33:15,722 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L730: havoc main_~node4__m4~4#1; [2025-03-16 19:33:15,722 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1655: havoc main_~node5____CPAchecker_TMP_0~3#1; [2025-03-16 19:33:15,723 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L598: havoc main_~node3__m3~3#1; [2025-03-16 19:33:15,723 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1523: havoc main_~node2____CPAchecker_TMP_0~2#1; [2025-03-16 19:33:15,723 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L235: havoc main_~node2__m2~0#1; [2025-03-16 19:33:15,723 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L467: havoc main_~node2__m2~2#1; [2025-03-16 19:33:15,723 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1922: havoc main_~node5____CPAchecker_TMP_0~4#1; [2025-03-16 19:33:15,723 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1790: havoc main_~node2____CPAchecker_TMP_0~3#1; [2025-03-16 19:33:15,723 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L700: havoc main_~node2__m2~4#1; [2025-03-16 19:33:15,723 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L899: havoc main_~node4____CPAchecker_TMP_0~0#1; [2025-03-16 19:33:15,723 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2057: havoc main_~node2____CPAchecker_TMP_0~4#1; [2025-03-16 19:33:15,723 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1166: havoc main_~node4____CPAchecker_TMP_0~1#1; [2025-03-16 19:33:15,724 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1433: havoc main_~node4____CPAchecker_TMP_0~2#1; [2025-03-16 19:33:15,724 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1700: havoc main_~node4____CPAchecker_TMP_0~3#1; [2025-03-16 19:33:15,724 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L280: havoc main_~node5__m5~0#1; [2025-03-16 19:33:15,724 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1040: havoc main_~node1____CPAchecker_TMP_0~0#1; [2025-03-16 19:33:15,724 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L512: havoc main_~node5__m5~2#1; [2025-03-16 19:33:15,725 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L215: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2025-03-16 19:33:15,725 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L447: havoc main_~node1__m1~2#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2025-03-16 19:33:15,725 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L381: havoc main_~node4__m4~1#1; [2025-03-16 19:33:15,725 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1967: havoc main_~node4____CPAchecker_TMP_0~4#1; [2025-03-16 19:33:15,725 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L745: havoc main_~node5__m5~4#1; [2025-03-16 19:33:15,725 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L613: havoc main_~node4__m4~3#1; [2025-03-16 19:33:15,725 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1307: havoc main_~node1____CPAchecker_TMP_0~1#1; [2025-03-16 19:33:15,725 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L250: havoc main_~node3__m3~0#1; [2025-03-16 19:33:15,725 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L944: havoc main_~node3____CPAchecker_TMP_0~0#1; [2025-03-16 19:33:15,725 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L680: havoc main_~node1__m1~4#1;havoc main_~__tmp_4~0#1, main_~assert__arg~3#1;havoc main_~check__tmp~3#1; [2025-03-16 19:33:15,726 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L482: havoc main_~node3__m3~2#1; [2025-03-16 19:33:15,726 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L351: havoc main_~node2__m2~1#1; [2025-03-16 19:33:15,726 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L715: havoc main_~node3__m3~4#1; [2025-03-16 19:33:15,726 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L583: havoc main_~node2__m2~3#1; [2025-03-16 19:33:15,726 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1574: havoc main_~node1____CPAchecker_TMP_0~2#1; [2025-03-16 19:33:15,726 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1211: havoc main_~node3____CPAchecker_TMP_0~1#1; [2025-03-16 19:33:15,726 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1841: havoc main_~node1____CPAchecker_TMP_0~3#1; [2025-03-16 19:33:15,726 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1478: havoc main_~node3____CPAchecker_TMP_0~2#1; [2025-03-16 19:33:15,727 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L785: havoc main_~__tmp_5~0#1, main_~assert__arg~4#1;havoc main_~check__tmp~4#1; [2025-03-16 19:33:15,727 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2108: havoc main_~node1____CPAchecker_TMP_0~4#1; [2025-03-16 19:33:15,727 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1745: havoc main_~node3____CPAchecker_TMP_0~3#1; [2025-03-16 19:33:15,727 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L854: havoc main_~node5____CPAchecker_TMP_0~0#1; [2025-03-16 19:33:15,727 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2012: havoc main_~node3____CPAchecker_TMP_0~4#1; [2025-03-16 19:33:15,727 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1121: havoc main_~node5____CPAchecker_TMP_0~1#1; [2025-03-16 19:33:15,727 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L989: havoc main_~node2____CPAchecker_TMP_0~0#1; [2025-03-16 19:33:15,727 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L396: havoc main_~node5__m5~1#1; [2025-03-16 19:33:15,727 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L628: havoc main_~node5__m5~3#1; [2025-03-16 19:33:15,727 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1388: havoc main_~node5____CPAchecker_TMP_0~2#1; [2025-03-16 19:33:15,727 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L331: havoc main_~node1__m1~1#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2025-03-16 19:33:15,727 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L265: havoc main_~node4__m4~0#1; [2025-03-16 19:33:15,727 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1256: havoc main_~node2____CPAchecker_TMP_0~1#1; [2025-03-16 19:33:15,727 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L563: havoc main_~node1__m1~3#1;havoc main_~__tmp_3~0#1, main_~assert__arg~2#1;havoc main_~check__tmp~2#1; [2025-03-16 19:33:15,727 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L497: havoc main_~node4__m4~2#1; [2025-03-16 19:33:15,783 INFO L? ?]: Removed 181 outVars from TransFormulas that were not future-live. [2025-03-16 19:33:15,783 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 19:33:15,800 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 19:33:15,801 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 19:33:15,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 07:33:15 BoogieIcfgContainer [2025-03-16 19:33:15,801 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 19:33:15,803 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 19:33:15,803 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 19:33:15,806 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 19:33:15,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 07:33:14" (1/3) ... [2025-03-16 19:33:15,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236960a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 07:33:15, skipping insertion in model container [2025-03-16 19:33:15,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:33:14" (2/3) ... [2025-03-16 19:33:15,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236960a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 07:33:15, skipping insertion in model container [2025-03-16 19:33:15,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 07:33:15" (3/3) ... [2025-03-16 19:33:15,808 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c [2025-03-16 19:33:15,818 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 19:33:15,820 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c that has 1 procedures, 335 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-16 19:33:15,872 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 19:33:15,881 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@f45f2c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 19:33:15,881 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 19:33:15,885 INFO L276 IsEmpty]: Start isEmpty. Operand has 335 states, 333 states have (on average 1.6546546546546546) internal successors, (551), 334 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:15,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2025-03-16 19:33:15,897 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:15,898 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:15,898 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:15,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:15,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1021842523, now seen corresponding path program 1 times [2025-03-16 19:33:15,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:15,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545109230] [2025-03-16 19:33:15,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:15,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:16,001 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-03-16 19:33:16,039 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-03-16 19:33:16,040 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:16,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:16,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:16,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:16,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545109230] [2025-03-16 19:33:16,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545109230] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:16,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:16,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 19:33:16,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145050792] [2025-03-16 19:33:16,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:16,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 19:33:16,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:16,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 19:33:16,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 19:33:16,478 INFO L87 Difference]: Start difference. First operand has 335 states, 333 states have (on average 1.6546546546546546) internal successors, (551), 334 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:16,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:16,575 INFO L93 Difference]: Finished difference Result 638 states and 1039 transitions. [2025-03-16 19:33:16,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 19:33:16,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2025-03-16 19:33:16,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:16,584 INFO L225 Difference]: With dead ends: 638 [2025-03-16 19:33:16,584 INFO L226 Difference]: Without dead ends: 332 [2025-03-16 19:33:16,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 19:33:16,589 INFO L435 NwaCegarLoop]: 548 mSDtfsCounter, 0 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1607 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:16,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1607 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:33:16,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2025-03-16 19:33:16,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2025-03-16 19:33:16,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 331 states have (on average 1.5468277945619335) internal successors, (512), 331 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:16,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 512 transitions. [2025-03-16 19:33:16,632 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 512 transitions. Word has length 126 [2025-03-16 19:33:16,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:16,633 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 512 transitions. [2025-03-16 19:33:16,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:16,633 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 512 transitions. [2025-03-16 19:33:16,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-16 19:33:16,635 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:16,635 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:16,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-16 19:33:16,635 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:16,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:16,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1022543155, now seen corresponding path program 1 times [2025-03-16 19:33:16,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:16,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475416736] [2025-03-16 19:33:16,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:16,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:16,683 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-16 19:33:16,696 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-16 19:33:16,696 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:16,696 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:16,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:16,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:16,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475416736] [2025-03-16 19:33:16,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475416736] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:16,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:16,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:33:16,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537475758] [2025-03-16 19:33:16,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:16,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:33:16,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:16,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:33:16,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:16,857 INFO L87 Difference]: Start difference. First operand 332 states and 512 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:16,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:16,924 INFO L93 Difference]: Finished difference Result 803 states and 1266 transitions. [2025-03-16 19:33:16,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:33:16,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2025-03-16 19:33:16,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:16,927 INFO L225 Difference]: With dead ends: 803 [2025-03-16 19:33:16,927 INFO L226 Difference]: Without dead ends: 522 [2025-03-16 19:33:16,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:16,931 INFO L435 NwaCegarLoop]: 581 mSDtfsCounter, 346 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:16,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 997 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:33:16,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2025-03-16 19:33:16,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 520. [2025-03-16 19:33:16,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 519 states have (on average 1.560693641618497) internal successors, (810), 519 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:16,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 810 transitions. [2025-03-16 19:33:16,957 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 810 transitions. Word has length 156 [2025-03-16 19:33:16,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:16,958 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 810 transitions. [2025-03-16 19:33:16,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:16,958 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 810 transitions. [2025-03-16 19:33:16,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2025-03-16 19:33:16,961 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:16,962 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:16,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-16 19:33:16,962 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:16,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:16,967 INFO L85 PathProgramCache]: Analyzing trace with hash 795535266, now seen corresponding path program 1 times [2025-03-16 19:33:16,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:16,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691398473] [2025-03-16 19:33:16,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:16,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:16,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-16 19:33:17,013 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-16 19:33:17,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:17,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:17,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:17,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:17,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691398473] [2025-03-16 19:33:17,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691398473] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:17,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:17,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:33:17,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452252529] [2025-03-16 19:33:17,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:17,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:33:17,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:17,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:33:17,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:17,124 INFO L87 Difference]: Start difference. First operand 520 states and 810 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:17,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:17,162 INFO L93 Difference]: Finished difference Result 1321 states and 2089 transitions. [2025-03-16 19:33:17,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:33:17,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2025-03-16 19:33:17,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:17,165 INFO L225 Difference]: With dead ends: 1321 [2025-03-16 19:33:17,166 INFO L226 Difference]: Without dead ends: 858 [2025-03-16 19:33:17,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:17,167 INFO L435 NwaCegarLoop]: 492 mSDtfsCounter, 334 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:17,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 896 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:33:17,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2025-03-16 19:33:17,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 856. [2025-03-16 19:33:17,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 855 states have (on average 1.567251461988304) internal successors, (1340), 855 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:17,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1340 transitions. [2025-03-16 19:33:17,185 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1340 transitions. Word has length 159 [2025-03-16 19:33:17,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:17,185 INFO L471 AbstractCegarLoop]: Abstraction has 856 states and 1340 transitions. [2025-03-16 19:33:17,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:17,186 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1340 transitions. [2025-03-16 19:33:17,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2025-03-16 19:33:17,188 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:17,188 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:17,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-16 19:33:17,188 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:17,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:17,189 INFO L85 PathProgramCache]: Analyzing trace with hash -2003602195, now seen corresponding path program 1 times [2025-03-16 19:33:17,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:17,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910650598] [2025-03-16 19:33:17,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:17,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:17,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-03-16 19:33:17,223 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-03-16 19:33:17,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:17,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:17,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:17,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:17,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910650598] [2025-03-16 19:33:17,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910650598] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:17,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:17,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:33:17,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286848101] [2025-03-16 19:33:17,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:17,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:33:17,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:17,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:33:17,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:17,284 INFO L87 Difference]: Start difference. First operand 856 states and 1340 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:17,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:17,324 INFO L93 Difference]: Finished difference Result 2239 states and 3537 transitions. [2025-03-16 19:33:17,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:33:17,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2025-03-16 19:33:17,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:17,330 INFO L225 Difference]: With dead ends: 2239 [2025-03-16 19:33:17,330 INFO L226 Difference]: Without dead ends: 1446 [2025-03-16 19:33:17,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:17,332 INFO L435 NwaCegarLoop]: 484 mSDtfsCounter, 321 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:17,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 876 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:33:17,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2025-03-16 19:33:17,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1444. [2025-03-16 19:33:17,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 1.5661815661815661) internal successors, (2260), 1443 states have internal predecessors, (2260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:17,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 2260 transitions. [2025-03-16 19:33:17,396 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 2260 transitions. Word has length 162 [2025-03-16 19:33:17,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:17,397 INFO L471 AbstractCegarLoop]: Abstraction has 1444 states and 2260 transitions. [2025-03-16 19:33:17,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:17,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 2260 transitions. [2025-03-16 19:33:17,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2025-03-16 19:33:17,401 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:17,401 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:17,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-16 19:33:17,402 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:17,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:17,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1347721060, now seen corresponding path program 1 times [2025-03-16 19:33:17,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:17,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873136489] [2025-03-16 19:33:17,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:17,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:17,430 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-03-16 19:33:17,444 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-03-16 19:33:17,444 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:17,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:17,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:17,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:17,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873136489] [2025-03-16 19:33:17,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873136489] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:17,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:17,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:33:17,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279483779] [2025-03-16 19:33:17,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:17,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:33:17,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:17,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:33:17,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:17,529 INFO L87 Difference]: Start difference. First operand 1444 states and 2260 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:17,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:17,577 INFO L93 Difference]: Finished difference Result 3825 states and 6013 transitions. [2025-03-16 19:33:17,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:33:17,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2025-03-16 19:33:17,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:17,586 INFO L225 Difference]: With dead ends: 3825 [2025-03-16 19:33:17,586 INFO L226 Difference]: Without dead ends: 2450 [2025-03-16 19:33:17,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:17,590 INFO L435 NwaCegarLoop]: 476 mSDtfsCounter, 308 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:17,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 856 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:33:17,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2450 states. [2025-03-16 19:33:17,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2450 to 2448. [2025-03-16 19:33:17,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 2447 states have (on average 1.5578259092766653) internal successors, (3812), 2447 states have internal predecessors, (3812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:17,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 3812 transitions. [2025-03-16 19:33:17,652 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 3812 transitions. Word has length 165 [2025-03-16 19:33:17,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:17,652 INFO L471 AbstractCegarLoop]: Abstraction has 2448 states and 3812 transitions. [2025-03-16 19:33:17,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:17,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 3812 transitions. [2025-03-16 19:33:17,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2025-03-16 19:33:17,658 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:17,658 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:17,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-16 19:33:17,658 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:17,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:17,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1560716832, now seen corresponding path program 1 times [2025-03-16 19:33:17,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:17,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074424648] [2025-03-16 19:33:17,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:17,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:17,686 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-03-16 19:33:17,695 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-03-16 19:33:17,695 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:17,695 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:17,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:17,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:17,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074424648] [2025-03-16 19:33:17,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074424648] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:17,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:17,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-16 19:33:17,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953597530] [2025-03-16 19:33:17,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:17,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-16 19:33:17,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:17,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-16 19:33:17,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-16 19:33:17,889 INFO L87 Difference]: Start difference. First operand 2448 states and 3812 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:18,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:18,663 INFO L93 Difference]: Finished difference Result 22975 states and 35817 transitions. [2025-03-16 19:33:18,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-16 19:33:18,666 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2025-03-16 19:33:18,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:18,734 INFO L225 Difference]: With dead ends: 22975 [2025-03-16 19:33:18,735 INFO L226 Difference]: Without dead ends: 20602 [2025-03-16 19:33:18,747 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2025-03-16 19:33:18,748 INFO L435 NwaCegarLoop]: 1853 mSDtfsCounter, 3002 mSDsluCounter, 7373 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3002 SdHoareTripleChecker+Valid, 9226 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:18,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3002 Valid, 9226 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-16 19:33:18,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20602 states. [2025-03-16 19:33:19,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20602 to 4850. [2025-03-16 19:33:19,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4850 states, 4849 states have (on average 1.5347494328727573) internal successors, (7442), 4849 states have internal predecessors, (7442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:19,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4850 states to 4850 states and 7442 transitions. [2025-03-16 19:33:19,046 INFO L78 Accepts]: Start accepts. Automaton has 4850 states and 7442 transitions. Word has length 168 [2025-03-16 19:33:19,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:19,047 INFO L471 AbstractCegarLoop]: Abstraction has 4850 states and 7442 transitions. [2025-03-16 19:33:19,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:19,047 INFO L276 IsEmpty]: Start isEmpty. Operand 4850 states and 7442 transitions. [2025-03-16 19:33:19,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2025-03-16 19:33:19,055 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:19,055 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:19,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-16 19:33:19,056 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:19,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:19,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1750678362, now seen corresponding path program 1 times [2025-03-16 19:33:19,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:19,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743187483] [2025-03-16 19:33:19,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:19,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:19,073 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 171 statements into 1 equivalence classes. [2025-03-16 19:33:19,079 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 171 of 171 statements. [2025-03-16 19:33:19,080 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:19,080 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:19,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:19,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:19,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743187483] [2025-03-16 19:33:19,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743187483] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:19,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:19,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:33:19,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613151071] [2025-03-16 19:33:19,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:19,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:33:19,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:19,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:33:19,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:19,145 INFO L87 Difference]: Start difference. First operand 4850 states and 7442 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:19,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:19,216 INFO L93 Difference]: Finished difference Result 13320 states and 20414 transitions. [2025-03-16 19:33:19,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:33:19,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171 [2025-03-16 19:33:19,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:19,229 INFO L225 Difference]: With dead ends: 13320 [2025-03-16 19:33:19,230 INFO L226 Difference]: Without dead ends: 8509 [2025-03-16 19:33:19,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:19,236 INFO L435 NwaCegarLoop]: 777 mSDtfsCounter, 337 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:19,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 1171 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:33:19,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8509 states. [2025-03-16 19:33:19,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8509 to 8507. [2025-03-16 19:33:19,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8507 states, 8506 states have (on average 1.5184575593698566) internal successors, (12916), 8506 states have internal predecessors, (12916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:19,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8507 states to 8507 states and 12916 transitions. [2025-03-16 19:33:19,366 INFO L78 Accepts]: Start accepts. Automaton has 8507 states and 12916 transitions. Word has length 171 [2025-03-16 19:33:19,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:19,366 INFO L471 AbstractCegarLoop]: Abstraction has 8507 states and 12916 transitions. [2025-03-16 19:33:19,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:19,366 INFO L276 IsEmpty]: Start isEmpty. Operand 8507 states and 12916 transitions. [2025-03-16 19:33:19,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2025-03-16 19:33:19,377 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:19,377 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:19,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-16 19:33:19,378 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:19,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:19,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1657570139, now seen corresponding path program 1 times [2025-03-16 19:33:19,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:19,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903958820] [2025-03-16 19:33:19,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:19,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:19,415 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 172 statements into 1 equivalence classes. [2025-03-16 19:33:19,421 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 172 of 172 statements. [2025-03-16 19:33:19,421 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:19,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:19,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:19,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:19,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903958820] [2025-03-16 19:33:19,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903958820] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:19,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:19,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:33:19,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413237274] [2025-03-16 19:33:19,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:19,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:33:19,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:19,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:33:19,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:19,501 INFO L87 Difference]: Start difference. First operand 8507 states and 12916 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:19,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:19,603 INFO L93 Difference]: Finished difference Result 20429 states and 30990 transitions. [2025-03-16 19:33:19,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:33:19,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 172 [2025-03-16 19:33:19,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:19,622 INFO L225 Difference]: With dead ends: 20429 [2025-03-16 19:33:19,623 INFO L226 Difference]: Without dead ends: 11989 [2025-03-16 19:33:19,633 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:19,634 INFO L435 NwaCegarLoop]: 444 mSDtfsCounter, 352 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:19,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 790 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:33:19,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11989 states. [2025-03-16 19:33:19,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11989 to 11923. [2025-03-16 19:33:19,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11923 states, 11922 states have (on average 1.4929542023150477) internal successors, (17799), 11922 states have internal predecessors, (17799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:19,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11923 states to 11923 states and 17799 transitions. [2025-03-16 19:33:19,871 INFO L78 Accepts]: Start accepts. Automaton has 11923 states and 17799 transitions. Word has length 172 [2025-03-16 19:33:19,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:19,872 INFO L471 AbstractCegarLoop]: Abstraction has 11923 states and 17799 transitions. [2025-03-16 19:33:19,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:19,872 INFO L276 IsEmpty]: Start isEmpty. Operand 11923 states and 17799 transitions. [2025-03-16 19:33:19,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2025-03-16 19:33:19,886 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:19,886 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:19,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-16 19:33:19,887 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:19,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:19,887 INFO L85 PathProgramCache]: Analyzing trace with hash -401236158, now seen corresponding path program 1 times [2025-03-16 19:33:19,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:19,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121109064] [2025-03-16 19:33:19,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:19,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:19,905 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 172 statements into 1 equivalence classes. [2025-03-16 19:33:19,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 172 of 172 statements. [2025-03-16 19:33:19,913 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:19,913 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:20,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:20,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:20,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121109064] [2025-03-16 19:33:20,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121109064] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:20,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:20,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-16 19:33:20,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625241574] [2025-03-16 19:33:20,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:20,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-16 19:33:20,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:20,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-16 19:33:20,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-16 19:33:20,249 INFO L87 Difference]: Start difference. First operand 11923 states and 17799 transitions. Second operand has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 7 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:20,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:20,567 INFO L93 Difference]: Finished difference Result 23780 states and 35520 transitions. [2025-03-16 19:33:20,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-16 19:33:20,567 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 7 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 172 [2025-03-16 19:33:20,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:20,585 INFO L225 Difference]: With dead ends: 23780 [2025-03-16 19:33:20,585 INFO L226 Difference]: Without dead ends: 11925 [2025-03-16 19:33:20,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-03-16 19:33:20,598 INFO L435 NwaCegarLoop]: 720 mSDtfsCounter, 389 mSDsluCounter, 1650 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 2370 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:20,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 2370 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-16 19:33:20,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11925 states. [2025-03-16 19:33:20,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11925 to 11923. [2025-03-16 19:33:20,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11923 states, 11922 states have (on average 1.478107700050327) internal successors, (17622), 11922 states have internal predecessors, (17622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:20,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11923 states to 11923 states and 17622 transitions. [2025-03-16 19:33:20,786 INFO L78 Accepts]: Start accepts. Automaton has 11923 states and 17622 transitions. Word has length 172 [2025-03-16 19:33:20,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:20,786 INFO L471 AbstractCegarLoop]: Abstraction has 11923 states and 17622 transitions. [2025-03-16 19:33:20,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 7 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:20,787 INFO L276 IsEmpty]: Start isEmpty. Operand 11923 states and 17622 transitions. [2025-03-16 19:33:20,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-03-16 19:33:20,802 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:20,802 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:20,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-16 19:33:20,803 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:20,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:20,803 INFO L85 PathProgramCache]: Analyzing trace with hash 652285522, now seen corresponding path program 1 times [2025-03-16 19:33:20,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:20,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662853614] [2025-03-16 19:33:20,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:20,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:20,820 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-03-16 19:33:20,831 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-03-16 19:33:20,831 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:20,831 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:20,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:20,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:20,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662853614] [2025-03-16 19:33:20,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662853614] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:20,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:20,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:33:20,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536963544] [2025-03-16 19:33:20,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:20,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:33:20,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:20,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:33:20,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:20,881 INFO L87 Difference]: Start difference. First operand 11923 states and 17622 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:21,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:21,196 INFO L93 Difference]: Finished difference Result 34294 states and 50677 transitions. [2025-03-16 19:33:21,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:33:21,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2025-03-16 19:33:21,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:21,231 INFO L225 Difference]: With dead ends: 34294 [2025-03-16 19:33:21,232 INFO L226 Difference]: Without dead ends: 23646 [2025-03-16 19:33:21,246 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:21,246 INFO L435 NwaCegarLoop]: 298 mSDtfsCounter, 359 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:21,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 563 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-16 19:33:21,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23646 states. [2025-03-16 19:33:21,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23646 to 23644. [2025-03-16 19:33:21,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23644 states, 23643 states have (on average 1.4691452015395678) internal successors, (34735), 23643 states have internal predecessors, (34735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:21,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23644 states to 23644 states and 34735 transitions. [2025-03-16 19:33:21,588 INFO L78 Accepts]: Start accepts. Automaton has 23644 states and 34735 transitions. Word has length 173 [2025-03-16 19:33:21,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:21,588 INFO L471 AbstractCegarLoop]: Abstraction has 23644 states and 34735 transitions. [2025-03-16 19:33:21,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:21,588 INFO L276 IsEmpty]: Start isEmpty. Operand 23644 states and 34735 transitions. [2025-03-16 19:33:21,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-03-16 19:33:21,620 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:21,620 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:21,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-16 19:33:21,620 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:21,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:21,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1274754994, now seen corresponding path program 1 times [2025-03-16 19:33:21,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:21,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055397421] [2025-03-16 19:33:21,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:21,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:21,637 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-03-16 19:33:21,647 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-03-16 19:33:21,647 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:21,647 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:21,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:21,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:21,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055397421] [2025-03-16 19:33:21,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055397421] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:21,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:21,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-16 19:33:21,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075456309] [2025-03-16 19:33:21,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:21,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-16 19:33:21,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:21,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-16 19:33:21,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-16 19:33:21,904 INFO L87 Difference]: Start difference. First operand 23644 states and 34735 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:22,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:22,551 INFO L93 Difference]: Finished difference Result 120321 states and 176264 transitions. [2025-03-16 19:33:22,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-16 19:33:22,551 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2025-03-16 19:33:22,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:22,741 INFO L225 Difference]: With dead ends: 120321 [2025-03-16 19:33:22,741 INFO L226 Difference]: Without dead ends: 104123 [2025-03-16 19:33:22,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2025-03-16 19:33:22,773 INFO L435 NwaCegarLoop]: 1308 mSDtfsCounter, 2427 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2427 SdHoareTripleChecker+Valid, 3522 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:22,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2427 Valid, 3522 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-16 19:33:22,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104123 states. [2025-03-16 19:33:23,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104123 to 44997. [2025-03-16 19:33:24,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44997 states, 44996 states have (on average 1.4597297537558893) internal successors, (65682), 44996 states have internal predecessors, (65682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:24,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44997 states to 44997 states and 65682 transitions. [2025-03-16 19:33:24,062 INFO L78 Accepts]: Start accepts. Automaton has 44997 states and 65682 transitions. Word has length 173 [2025-03-16 19:33:24,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:24,062 INFO L471 AbstractCegarLoop]: Abstraction has 44997 states and 65682 transitions. [2025-03-16 19:33:24,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:24,062 INFO L276 IsEmpty]: Start isEmpty. Operand 44997 states and 65682 transitions. [2025-03-16 19:33:24,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-03-16 19:33:24,116 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:24,116 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:24,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-16 19:33:24,116 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:24,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:24,117 INFO L85 PathProgramCache]: Analyzing trace with hash 281801718, now seen corresponding path program 1 times [2025-03-16 19:33:24,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:24,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588376521] [2025-03-16 19:33:24,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:24,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:24,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-03-16 19:33:24,149 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-03-16 19:33:24,149 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:24,149 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:24,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:24,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:24,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588376521] [2025-03-16 19:33:24,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588376521] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:24,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:24,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-16 19:33:24,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058928694] [2025-03-16 19:33:24,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:24,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-16 19:33:24,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:24,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-16 19:33:24,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-16 19:33:24,333 INFO L87 Difference]: Start difference. First operand 44997 states and 65682 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:24,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:24,864 INFO L93 Difference]: Finished difference Result 139037 states and 203344 transitions. [2025-03-16 19:33:24,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-16 19:33:24,864 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2025-03-16 19:33:24,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:25,170 INFO L225 Difference]: With dead ends: 139037 [2025-03-16 19:33:25,170 INFO L226 Difference]: Without dead ends: 123691 [2025-03-16 19:33:25,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2025-03-16 19:33:25,190 INFO L435 NwaCegarLoop]: 1111 mSDtfsCounter, 2612 mSDsluCounter, 2629 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2612 SdHoareTripleChecker+Valid, 3740 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:25,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2612 Valid, 3740 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-16 19:33:25,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123691 states. [2025-03-16 19:33:26,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123691 to 73097. [2025-03-16 19:33:26,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73097 states, 73096 states have (on average 1.4514610922622304) internal successors, (106096), 73096 states have internal predecessors, (106096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:26,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73097 states to 73097 states and 106096 transitions. [2025-03-16 19:33:26,639 INFO L78 Accepts]: Start accepts. Automaton has 73097 states and 106096 transitions. Word has length 173 [2025-03-16 19:33:26,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:26,639 INFO L471 AbstractCegarLoop]: Abstraction has 73097 states and 106096 transitions. [2025-03-16 19:33:26,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:26,639 INFO L276 IsEmpty]: Start isEmpty. Operand 73097 states and 106096 transitions. [2025-03-16 19:33:26,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-03-16 19:33:26,707 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:26,708 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:26,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-16 19:33:26,708 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:26,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:26,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1177859536, now seen corresponding path program 1 times [2025-03-16 19:33:26,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:26,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812400079] [2025-03-16 19:33:26,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:26,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:26,732 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-03-16 19:33:26,745 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-03-16 19:33:26,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:26,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:26,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:26,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:26,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812400079] [2025-03-16 19:33:26,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812400079] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:26,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:26,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-16 19:33:26,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5865683] [2025-03-16 19:33:26,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:26,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-16 19:33:26,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:26,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-16 19:33:26,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-16 19:33:26,922 INFO L87 Difference]: Start difference. First operand 73097 states and 106096 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:27,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:27,689 INFO L93 Difference]: Finished difference Result 156769 states and 228972 transitions. [2025-03-16 19:33:27,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-16 19:33:27,689 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2025-03-16 19:33:27,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:27,818 INFO L225 Difference]: With dead ends: 156769 [2025-03-16 19:33:27,819 INFO L226 Difference]: Without dead ends: 141135 [2025-03-16 19:33:27,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2025-03-16 19:33:27,851 INFO L435 NwaCegarLoop]: 1168 mSDtfsCounter, 2433 mSDsluCounter, 2788 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2433 SdHoareTripleChecker+Valid, 3956 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:27,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2433 Valid, 3956 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-16 19:33:27,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141135 states. [2025-03-16 19:33:29,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141135 to 92279. [2025-03-16 19:33:29,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92279 states, 92278 states have (on average 1.4507900041179913) internal successors, (133876), 92278 states have internal predecessors, (133876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:29,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92279 states to 92279 states and 133876 transitions. [2025-03-16 19:33:29,464 INFO L78 Accepts]: Start accepts. Automaton has 92279 states and 133876 transitions. Word has length 173 [2025-03-16 19:33:29,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:29,464 INFO L471 AbstractCegarLoop]: Abstraction has 92279 states and 133876 transitions. [2025-03-16 19:33:29,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:29,465 INFO L276 IsEmpty]: Start isEmpty. Operand 92279 states and 133876 transitions. [2025-03-16 19:33:29,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-03-16 19:33:29,561 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:29,561 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:29,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-16 19:33:29,561 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:29,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:29,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1896800370, now seen corresponding path program 1 times [2025-03-16 19:33:29,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:29,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687153814] [2025-03-16 19:33:29,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:29,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:29,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-03-16 19:33:29,593 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-03-16 19:33:29,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:29,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:29,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:29,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:29,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687153814] [2025-03-16 19:33:29,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687153814] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:29,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:29,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-16 19:33:29,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002478990] [2025-03-16 19:33:29,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:29,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-16 19:33:29,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:29,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-16 19:33:29,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-16 19:33:29,779 INFO L87 Difference]: Start difference. First operand 92279 states and 133876 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:30,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:30,738 INFO L93 Difference]: Finished difference Result 175789 states and 256448 transitions. [2025-03-16 19:33:30,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-16 19:33:30,738 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2025-03-16 19:33:30,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:30,887 INFO L225 Difference]: With dead ends: 175789 [2025-03-16 19:33:30,887 INFO L226 Difference]: Without dead ends: 159891 [2025-03-16 19:33:30,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2025-03-16 19:33:30,932 INFO L435 NwaCegarLoop]: 1472 mSDtfsCounter, 2357 mSDsluCounter, 3967 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2357 SdHoareTripleChecker+Valid, 5439 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:30,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2357 Valid, 5439 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-16 19:33:31,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159891 states. [2025-03-16 19:33:32,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159891 to 111781. [2025-03-16 19:33:32,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111781 states, 111780 states have (on average 1.4502773304705672) internal successors, (162112), 111780 states have internal predecessors, (162112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:33,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111781 states to 111781 states and 162112 transitions. [2025-03-16 19:33:33,098 INFO L78 Accepts]: Start accepts. Automaton has 111781 states and 162112 transitions. Word has length 173 [2025-03-16 19:33:33,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:33,098 INFO L471 AbstractCegarLoop]: Abstraction has 111781 states and 162112 transitions. [2025-03-16 19:33:33,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:33,098 INFO L276 IsEmpty]: Start isEmpty. Operand 111781 states and 162112 transitions. [2025-03-16 19:33:33,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2025-03-16 19:33:33,223 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:33,223 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:33,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-16 19:33:33,223 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:33,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:33,224 INFO L85 PathProgramCache]: Analyzing trace with hash -288195782, now seen corresponding path program 1 times [2025-03-16 19:33:33,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:33,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6962212] [2025-03-16 19:33:33,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:33,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:33,243 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 174 statements into 1 equivalence classes. [2025-03-16 19:33:33,252 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 174 of 174 statements. [2025-03-16 19:33:33,253 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:33,253 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:33,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:33,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:33,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6962212] [2025-03-16 19:33:33,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6962212] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:33,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:33,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-16 19:33:33,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767725739] [2025-03-16 19:33:33,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:33,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-16 19:33:33,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:33,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-16 19:33:33,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-16 19:33:33,439 INFO L87 Difference]: Start difference. First operand 111781 states and 162112 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:34,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:34,691 INFO L93 Difference]: Finished difference Result 184894 states and 270045 transitions. [2025-03-16 19:33:34,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-16 19:33:34,691 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2025-03-16 19:33:34,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:34,848 INFO L225 Difference]: With dead ends: 184894 [2025-03-16 19:33:34,848 INFO L226 Difference]: Without dead ends: 173700 [2025-03-16 19:33:34,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2025-03-16 19:33:34,877 INFO L435 NwaCegarLoop]: 1422 mSDtfsCounter, 2505 mSDsluCounter, 3721 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2505 SdHoareTripleChecker+Valid, 5143 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:34,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2505 Valid, 5143 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-16 19:33:34,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173700 states. [2025-03-16 19:33:36,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173700 to 125590. [2025-03-16 19:33:36,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125590 states, 125589 states have (on average 1.4528422075181744) internal successors, (182461), 125589 states have internal predecessors, (182461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:36,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125590 states to 125590 states and 182461 transitions. [2025-03-16 19:33:36,905 INFO L78 Accepts]: Start accepts. Automaton has 125590 states and 182461 transitions. Word has length 174 [2025-03-16 19:33:36,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:36,905 INFO L471 AbstractCegarLoop]: Abstraction has 125590 states and 182461 transitions. [2025-03-16 19:33:36,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:36,905 INFO L276 IsEmpty]: Start isEmpty. Operand 125590 states and 182461 transitions. [2025-03-16 19:33:37,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2025-03-16 19:33:37,048 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:37,049 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:37,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-16 19:33:37,049 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:37,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:37,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1577396582, now seen corresponding path program 1 times [2025-03-16 19:33:37,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:37,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088988274] [2025-03-16 19:33:37,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:37,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:37,069 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-03-16 19:33:37,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-03-16 19:33:37,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:37,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:37,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:37,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:37,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088988274] [2025-03-16 19:33:37,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088988274] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:37,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:37,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 19:33:37,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238930078] [2025-03-16 19:33:37,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:37,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 19:33:37,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:37,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 19:33:37,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 19:33:37,204 INFO L87 Difference]: Start difference. First operand 125590 states and 182461 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:37,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:37,923 INFO L93 Difference]: Finished difference Result 179482 states and 261078 transitions. [2025-03-16 19:33:37,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 19:33:37,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2025-03-16 19:33:37,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:37,989 INFO L225 Difference]: With dead ends: 179482 [2025-03-16 19:33:37,989 INFO L226 Difference]: Without dead ends: 63234 [2025-03-16 19:33:38,049 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-16 19:33:38,050 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 1297 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1297 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:38,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1297 Valid, 270 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-16 19:33:38,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63234 states. [2025-03-16 19:33:38,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63234 to 63234. [2025-03-16 19:33:38,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63234 states, 63233 states have (on average 1.4497335252162638) internal successors, (91671), 63233 states have internal predecessors, (91671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:38,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63234 states to 63234 states and 91671 transitions. [2025-03-16 19:33:38,958 INFO L78 Accepts]: Start accepts. Automaton has 63234 states and 91671 transitions. Word has length 175 [2025-03-16 19:33:38,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:38,958 INFO L471 AbstractCegarLoop]: Abstraction has 63234 states and 91671 transitions. [2025-03-16 19:33:38,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:38,958 INFO L276 IsEmpty]: Start isEmpty. Operand 63234 states and 91671 transitions. [2025-03-16 19:33:39,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2025-03-16 19:33:39,010 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:39,010 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:39,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-16 19:33:39,010 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:39,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:39,011 INFO L85 PathProgramCache]: Analyzing trace with hash 733239641, now seen corresponding path program 1 times [2025-03-16 19:33:39,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:39,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819422163] [2025-03-16 19:33:39,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:39,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:39,026 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-03-16 19:33:39,052 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-03-16 19:33:39,053 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:39,053 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:39,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:39,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:39,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819422163] [2025-03-16 19:33:39,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819422163] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:39,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:39,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:33:39,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706494880] [2025-03-16 19:33:39,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:39,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:33:39,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:39,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:33:39,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:39,134 INFO L87 Difference]: Start difference. First operand 63234 states and 91671 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:39,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:39,299 INFO L93 Difference]: Finished difference Result 86566 states and 126249 transitions. [2025-03-16 19:33:39,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:33:39,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2025-03-16 19:33:39,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:39,330 INFO L225 Difference]: With dead ends: 86566 [2025-03-16 19:33:39,330 INFO L226 Difference]: Without dead ends: 31890 [2025-03-16 19:33:39,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:39,361 INFO L435 NwaCegarLoop]: 430 mSDtfsCounter, 195 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:39,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 708 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:33:39,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31890 states. [2025-03-16 19:33:39,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31890 to 31888. [2025-03-16 19:33:39,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31888 states, 31887 states have (on average 1.4653620597735755) internal successors, (46726), 31887 states have internal predecessors, (46726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:39,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31888 states to 31888 states and 46726 transitions. [2025-03-16 19:33:39,958 INFO L78 Accepts]: Start accepts. Automaton has 31888 states and 46726 transitions. Word has length 175 [2025-03-16 19:33:39,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:39,959 INFO L471 AbstractCegarLoop]: Abstraction has 31888 states and 46726 transitions. [2025-03-16 19:33:39,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:39,959 INFO L276 IsEmpty]: Start isEmpty. Operand 31888 states and 46726 transitions. [2025-03-16 19:33:39,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-03-16 19:33:39,980 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:39,981 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:39,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-16 19:33:39,981 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:39,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:39,981 INFO L85 PathProgramCache]: Analyzing trace with hash 761419123, now seen corresponding path program 1 times [2025-03-16 19:33:39,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:39,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842247449] [2025-03-16 19:33:39,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:39,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:40,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-03-16 19:33:40,016 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-03-16 19:33:40,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:40,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:40,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:40,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:40,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842247449] [2025-03-16 19:33:40,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842247449] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:40,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:40,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:33:40,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080715340] [2025-03-16 19:33:40,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:40,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:33:40,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:40,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:33:40,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:40,103 INFO L87 Difference]: Start difference. First operand 31888 states and 46726 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:40,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:40,245 INFO L93 Difference]: Finished difference Result 45392 states and 66638 transitions. [2025-03-16 19:33:40,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:33:40,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2025-03-16 19:33:40,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:40,261 INFO L225 Difference]: With dead ends: 45392 [2025-03-16 19:33:40,261 INFO L226 Difference]: Without dead ends: 16315 [2025-03-16 19:33:40,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:40,278 INFO L435 NwaCegarLoop]: 427 mSDtfsCounter, 189 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:40,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 673 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:33:40,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16315 states. [2025-03-16 19:33:40,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16315 to 16313. [2025-03-16 19:33:40,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16313 states, 16312 states have (on average 1.4546346248160864) internal successors, (23728), 16312 states have internal predecessors, (23728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:40,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16313 states to 16313 states and 23728 transitions. [2025-03-16 19:33:40,545 INFO L78 Accepts]: Start accepts. Automaton has 16313 states and 23728 transitions. Word has length 177 [2025-03-16 19:33:40,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:40,546 INFO L471 AbstractCegarLoop]: Abstraction has 16313 states and 23728 transitions. [2025-03-16 19:33:40,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:40,546 INFO L276 IsEmpty]: Start isEmpty. Operand 16313 states and 23728 transitions. [2025-03-16 19:33:40,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-03-16 19:33:40,674 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:40,674 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:40,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-16 19:33:40,675 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:40,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:40,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1388597660, now seen corresponding path program 1 times [2025-03-16 19:33:40,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:40,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292702468] [2025-03-16 19:33:40,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:40,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:40,691 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-03-16 19:33:40,709 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-03-16 19:33:40,709 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:40,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:40,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:40,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:40,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292702468] [2025-03-16 19:33:40,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292702468] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:40,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:40,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:33:40,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811692438] [2025-03-16 19:33:40,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:40,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:33:40,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:40,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:33:40,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:40,777 INFO L87 Difference]: Start difference. First operand 16313 states and 23728 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:40,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:40,824 INFO L93 Difference]: Finished difference Result 22883 states and 33394 transitions. [2025-03-16 19:33:40,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:33:40,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2025-03-16 19:33:40,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:40,833 INFO L225 Difference]: With dead ends: 22883 [2025-03-16 19:33:40,833 INFO L226 Difference]: Without dead ends: 8383 [2025-03-16 19:33:40,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:40,842 INFO L435 NwaCegarLoop]: 406 mSDtfsCounter, 177 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:40,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 628 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:33:40,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8383 states. [2025-03-16 19:33:40,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8383 to 8381. [2025-03-16 19:33:40,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8381 states, 8380 states have (on average 1.4409307875894988) internal successors, (12075), 8380 states have internal predecessors, (12075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:40,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8381 states to 8381 states and 12075 transitions. [2025-03-16 19:33:40,928 INFO L78 Accepts]: Start accepts. Automaton has 8381 states and 12075 transitions. Word has length 177 [2025-03-16 19:33:40,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:40,929 INFO L471 AbstractCegarLoop]: Abstraction has 8381 states and 12075 transitions. [2025-03-16 19:33:40,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:40,929 INFO L276 IsEmpty]: Start isEmpty. Operand 8381 states and 12075 transitions. [2025-03-16 19:33:40,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-03-16 19:33:40,934 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:40,934 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:40,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-16 19:33:40,934 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:40,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:40,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1915514996, now seen corresponding path program 1 times [2025-03-16 19:33:40,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:40,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231266424] [2025-03-16 19:33:40,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:40,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:40,950 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-03-16 19:33:40,959 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-03-16 19:33:40,960 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:40,960 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:41,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:41,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:41,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231266424] [2025-03-16 19:33:41,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231266424] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:41,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:41,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:33:41,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20725148] [2025-03-16 19:33:41,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:41,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:33:41,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:41,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:33:41,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:41,007 INFO L87 Difference]: Start difference. First operand 8381 states and 12075 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:41,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:41,212 INFO L93 Difference]: Finished difference Result 23465 states and 33841 transitions. [2025-03-16 19:33:41,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:33:41,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2025-03-16 19:33:41,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:41,228 INFO L225 Difference]: With dead ends: 23465 [2025-03-16 19:33:41,228 INFO L226 Difference]: Without dead ends: 16609 [2025-03-16 19:33:41,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:41,237 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 211 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:41,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 489 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-16 19:33:41,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16609 states. [2025-03-16 19:33:41,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16609 to 16607. [2025-03-16 19:33:41,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16607 states, 16606 states have (on average 1.4327953751656028) internal successors, (23793), 16606 states have internal predecessors, (23793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:41,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16607 states to 16607 states and 23793 transitions. [2025-03-16 19:33:41,396 INFO L78 Accepts]: Start accepts. Automaton has 16607 states and 23793 transitions. Word has length 177 [2025-03-16 19:33:41,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:41,396 INFO L471 AbstractCegarLoop]: Abstraction has 16607 states and 23793 transitions. [2025-03-16 19:33:41,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:41,397 INFO L276 IsEmpty]: Start isEmpty. Operand 16607 states and 23793 transitions. [2025-03-16 19:33:41,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-03-16 19:33:41,408 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:41,408 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:41,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-16 19:33:41,408 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:41,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:41,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1085367699, now seen corresponding path program 1 times [2025-03-16 19:33:41,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:41,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269210969] [2025-03-16 19:33:41,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:41,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:41,426 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-03-16 19:33:41,439 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-03-16 19:33:41,440 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:41,440 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:41,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:41,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:41,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269210969] [2025-03-16 19:33:41,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269210969] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:41,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:41,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:33:41,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278901735] [2025-03-16 19:33:41,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:41,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:33:41,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:41,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:33:41,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:41,556 INFO L87 Difference]: Start difference. First operand 16607 states and 23793 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:41,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:41,608 INFO L93 Difference]: Finished difference Result 22921 states and 32987 transitions. [2025-03-16 19:33:41,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:33:41,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2025-03-16 19:33:41,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:41,617 INFO L225 Difference]: With dead ends: 22921 [2025-03-16 19:33:41,617 INFO L226 Difference]: Without dead ends: 8642 [2025-03-16 19:33:41,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:41,625 INFO L435 NwaCegarLoop]: 385 mSDtfsCounter, 165 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:41,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 583 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:33:41,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8642 states. [2025-03-16 19:33:41,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8642 to 8640. [2025-03-16 19:33:41,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8640 states, 8639 states have (on average 1.4182197013543234) internal successors, (12252), 8639 states have internal predecessors, (12252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:41,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8640 states to 8640 states and 12252 transitions. [2025-03-16 19:33:41,697 INFO L78 Accepts]: Start accepts. Automaton has 8640 states and 12252 transitions. Word has length 177 [2025-03-16 19:33:41,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:41,697 INFO L471 AbstractCegarLoop]: Abstraction has 8640 states and 12252 transitions. [2025-03-16 19:33:41,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:41,697 INFO L276 IsEmpty]: Start isEmpty. Operand 8640 states and 12252 transitions. [2025-03-16 19:33:41,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-03-16 19:33:41,702 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:41,702 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:41,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-16 19:33:41,702 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:41,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:41,702 INFO L85 PathProgramCache]: Analyzing trace with hash -353117316, now seen corresponding path program 1 times [2025-03-16 19:33:41,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:41,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108270075] [2025-03-16 19:33:41,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:41,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:41,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-03-16 19:33:41,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-03-16 19:33:41,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:41,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:41,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:41,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:41,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108270075] [2025-03-16 19:33:41,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108270075] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:41,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:41,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:33:41,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449310930] [2025-03-16 19:33:41,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:41,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:33:41,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:41,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:33:41,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:41,782 INFO L87 Difference]: Start difference. First operand 8640 states and 12252 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:41,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:41,812 INFO L93 Difference]: Finished difference Result 12228 states and 17362 transitions. [2025-03-16 19:33:41,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:33:41,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2025-03-16 19:33:41,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:41,816 INFO L225 Difference]: With dead ends: 12228 [2025-03-16 19:33:41,817 INFO L226 Difference]: Without dead ends: 4457 [2025-03-16 19:33:41,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:33:41,821 INFO L435 NwaCegarLoop]: 345 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:41,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 539 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:33:41,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4457 states. [2025-03-16 19:33:41,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4457 to 4455. [2025-03-16 19:33:41,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4455 states, 4454 states have (on average 1.4034575662325999) internal successors, (6251), 4454 states have internal predecessors, (6251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:41,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4455 states to 4455 states and 6251 transitions. [2025-03-16 19:33:41,851 INFO L78 Accepts]: Start accepts. Automaton has 4455 states and 6251 transitions. Word has length 177 [2025-03-16 19:33:41,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:41,852 INFO L471 AbstractCegarLoop]: Abstraction has 4455 states and 6251 transitions. [2025-03-16 19:33:41,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:41,852 INFO L276 IsEmpty]: Start isEmpty. Operand 4455 states and 6251 transitions. [2025-03-16 19:33:41,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-03-16 19:33:41,854 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:41,854 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:41,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-16 19:33:41,854 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:41,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:41,855 INFO L85 PathProgramCache]: Analyzing trace with hash 427356937, now seen corresponding path program 1 times [2025-03-16 19:33:41,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:41,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490812578] [2025-03-16 19:33:41,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:41,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:41,867 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-03-16 19:33:41,904 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-03-16 19:33:41,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:41,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:42,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:42,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:42,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490812578] [2025-03-16 19:33:42,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490812578] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:42,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:42,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-16 19:33:42,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321278007] [2025-03-16 19:33:42,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:42,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-16 19:33:42,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:42,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-16 19:33:42,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-16 19:33:42,133 INFO L87 Difference]: Start difference. First operand 4455 states and 6251 transitions. Second operand has 9 states, 9 states have (on average 19.666666666666668) internal successors, (177), 8 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:42,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:42,702 INFO L93 Difference]: Finished difference Result 13206 states and 18492 transitions. [2025-03-16 19:33:42,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-16 19:33:42,703 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.666666666666668) internal successors, (177), 8 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2025-03-16 19:33:42,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:42,710 INFO L225 Difference]: With dead ends: 13206 [2025-03-16 19:33:42,710 INFO L226 Difference]: Without dead ends: 8794 [2025-03-16 19:33:42,713 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2025-03-16 19:33:42,714 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 1718 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:42,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1718 Valid, 1051 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-16 19:33:42,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8794 states. [2025-03-16 19:33:42,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8794 to 8644. [2025-03-16 19:33:42,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8644 states, 8643 states have (on average 1.3969686451463612) internal successors, (12074), 8643 states have internal predecessors, (12074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:42,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8644 states to 8644 states and 12074 transitions. [2025-03-16 19:33:42,821 INFO L78 Accepts]: Start accepts. Automaton has 8644 states and 12074 transitions. Word has length 177 [2025-03-16 19:33:42,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:42,821 INFO L471 AbstractCegarLoop]: Abstraction has 8644 states and 12074 transitions. [2025-03-16 19:33:42,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.666666666666668) internal successors, (177), 8 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:42,821 INFO L276 IsEmpty]: Start isEmpty. Operand 8644 states and 12074 transitions. [2025-03-16 19:33:42,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-03-16 19:33:42,826 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:42,826 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:42,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-16 19:33:42,827 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:42,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:42,827 INFO L85 PathProgramCache]: Analyzing trace with hash -31449431, now seen corresponding path program 1 times [2025-03-16 19:33:42,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:42,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007757045] [2025-03-16 19:33:42,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:42,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:42,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-03-16 19:33:42,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-03-16 19:33:42,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:42,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:43,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:43,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:43,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007757045] [2025-03-16 19:33:43,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007757045] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:43,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:43,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-16 19:33:43,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185136545] [2025-03-16 19:33:43,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:43,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-16 19:33:43,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:43,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-16 19:33:43,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-16 19:33:43,262 INFO L87 Difference]: Start difference. First operand 8644 states and 12074 transitions. Second operand has 13 states, 13 states have (on average 13.615384615384615) internal successors, (177), 12 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:44,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:44,017 INFO L93 Difference]: Finished difference Result 20361 states and 28621 transitions. [2025-03-16 19:33:44,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-16 19:33:44,017 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 13.615384615384615) internal successors, (177), 12 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2025-03-16 19:33:44,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:44,028 INFO L225 Difference]: With dead ends: 20361 [2025-03-16 19:33:44,029 INFO L226 Difference]: Without dead ends: 12670 [2025-03-16 19:33:44,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2025-03-16 19:33:44,036 INFO L435 NwaCegarLoop]: 259 mSDtfsCounter, 1322 mSDsluCounter, 1735 mSDsCounter, 0 mSdLazyCounter, 1595 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 1603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:44,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 1994 Invalid, 1603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1595 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-16 19:33:44,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12670 states. [2025-03-16 19:33:44,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12670 to 9374. [2025-03-16 19:33:44,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9374 states, 9373 states have (on average 1.3964579110210178) internal successors, (13089), 9373 states have internal predecessors, (13089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:44,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9374 states to 9374 states and 13089 transitions. [2025-03-16 19:33:44,137 INFO L78 Accepts]: Start accepts. Automaton has 9374 states and 13089 transitions. Word has length 177 [2025-03-16 19:33:44,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:44,138 INFO L471 AbstractCegarLoop]: Abstraction has 9374 states and 13089 transitions. [2025-03-16 19:33:44,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.615384615384615) internal successors, (177), 12 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:44,138 INFO L276 IsEmpty]: Start isEmpty. Operand 9374 states and 13089 transitions. [2025-03-16 19:33:44,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2025-03-16 19:33:44,143 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:44,143 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:44,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-16 19:33:44,143 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:44,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:44,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1122292790, now seen corresponding path program 1 times [2025-03-16 19:33:44,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:44,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072353184] [2025-03-16 19:33:44,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:44,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:44,158 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 178 statements into 1 equivalence classes. [2025-03-16 19:33:44,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 178 of 178 statements. [2025-03-16 19:33:44,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:44,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:44,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:44,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:44,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072353184] [2025-03-16 19:33:44,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072353184] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:44,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:44,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-16 19:33:44,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53026344] [2025-03-16 19:33:44,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:44,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-16 19:33:44,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:44,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-16 19:33:44,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-16 19:33:44,607 INFO L87 Difference]: Start difference. First operand 9374 states and 13089 transitions. Second operand has 13 states, 13 states have (on average 13.692307692307692) internal successors, (178), 12 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:45,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:45,393 INFO L93 Difference]: Finished difference Result 26018 states and 36304 transitions. [2025-03-16 19:33:45,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-16 19:33:45,393 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 13.692307692307692) internal successors, (178), 12 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178 [2025-03-16 19:33:45,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:45,413 INFO L225 Difference]: With dead ends: 26018 [2025-03-16 19:33:45,414 INFO L226 Difference]: Without dead ends: 21162 [2025-03-16 19:33:45,423 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2025-03-16 19:33:45,423 INFO L435 NwaCegarLoop]: 303 mSDtfsCounter, 2478 mSDsluCounter, 1741 mSDsCounter, 0 mSdLazyCounter, 1687 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2478 SdHoareTripleChecker+Valid, 2044 SdHoareTripleChecker+Invalid, 1695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:45,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2478 Valid, 2044 Invalid, 1695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1687 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-16 19:33:45,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21162 states. [2025-03-16 19:33:45,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21162 to 13124. [2025-03-16 19:33:45,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13124 states, 13123 states have (on average 1.3911453173816963) internal successors, (18256), 13123 states have internal predecessors, (18256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:45,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13124 states to 13124 states and 18256 transitions. [2025-03-16 19:33:45,606 INFO L78 Accepts]: Start accepts. Automaton has 13124 states and 18256 transitions. Word has length 178 [2025-03-16 19:33:45,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:45,606 INFO L471 AbstractCegarLoop]: Abstraction has 13124 states and 18256 transitions. [2025-03-16 19:33:45,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.692307692307692) internal successors, (178), 12 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:45,606 INFO L276 IsEmpty]: Start isEmpty. Operand 13124 states and 18256 transitions. [2025-03-16 19:33:45,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2025-03-16 19:33:45,614 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:45,614 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:45,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-16 19:33:45,614 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:45,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:45,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1811665142, now seen corresponding path program 1 times [2025-03-16 19:33:45,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:45,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381075018] [2025-03-16 19:33:45,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:45,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:45,627 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-03-16 19:33:45,646 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-03-16 19:33:45,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:45,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:46,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:46,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:46,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381075018] [2025-03-16 19:33:46,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381075018] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:46,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:46,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-03-16 19:33:46,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168656032] [2025-03-16 19:33:46,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:46,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-16 19:33:46,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:46,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-16 19:33:46,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2025-03-16 19:33:46,029 INFO L87 Difference]: Start difference. First operand 13124 states and 18256 transitions. Second operand has 12 states, 12 states have (on average 14.916666666666666) internal successors, (179), 11 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:47,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:47,028 INFO L93 Difference]: Finished difference Result 28158 states and 39286 transitions. [2025-03-16 19:33:47,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-16 19:33:47,028 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.916666666666666) internal successors, (179), 11 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 179 [2025-03-16 19:33:47,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:47,049 INFO L225 Difference]: With dead ends: 28158 [2025-03-16 19:33:47,049 INFO L226 Difference]: Without dead ends: 23354 [2025-03-16 19:33:47,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2025-03-16 19:33:47,059 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 1529 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 1564 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1529 SdHoareTripleChecker+Valid, 1819 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:47,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1529 Valid, 1819 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1564 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-16 19:33:47,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23354 states. [2025-03-16 19:33:47,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23354 to 12214. [2025-03-16 19:33:47,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12214 states, 12213 states have (on average 1.3944976664210267) internal successors, (17031), 12213 states have internal predecessors, (17031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:47,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12214 states to 12214 states and 17031 transitions. [2025-03-16 19:33:47,317 INFO L78 Accepts]: Start accepts. Automaton has 12214 states and 17031 transitions. Word has length 179 [2025-03-16 19:33:47,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:47,317 INFO L471 AbstractCegarLoop]: Abstraction has 12214 states and 17031 transitions. [2025-03-16 19:33:47,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.916666666666666) internal successors, (179), 11 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:47,317 INFO L276 IsEmpty]: Start isEmpty. Operand 12214 states and 17031 transitions. [2025-03-16 19:33:47,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2025-03-16 19:33:47,324 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:47,324 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:47,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-03-16 19:33:47,324 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:47,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:47,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1963289774, now seen corresponding path program 1 times [2025-03-16 19:33:47,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:47,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377056335] [2025-03-16 19:33:47,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:47,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:47,337 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-03-16 19:33:47,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-03-16 19:33:47,345 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:47,345 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:47,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:47,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:47,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377056335] [2025-03-16 19:33:47,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377056335] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:47,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:47,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 19:33:47,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65268268] [2025-03-16 19:33:47,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:47,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 19:33:47,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:47,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 19:33:47,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 19:33:47,389 INFO L87 Difference]: Start difference. First operand 12214 states and 17031 transitions. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:47,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:47,587 INFO L93 Difference]: Finished difference Result 17162 states and 23906 transitions. [2025-03-16 19:33:47,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 19:33:47,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 179 [2025-03-16 19:33:47,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:47,598 INFO L225 Difference]: With dead ends: 17162 [2025-03-16 19:33:47,599 INFO L226 Difference]: Without dead ends: 13130 [2025-03-16 19:33:47,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-16 19:33:47,604 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 257 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:47,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 616 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-16 19:33:47,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13130 states. [2025-03-16 19:33:47,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13130 to 12088. [2025-03-16 19:33:47,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12088 states, 12087 states have (on average 1.3979482088193926) internal successors, (16897), 12087 states have internal predecessors, (16897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:47,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12088 states to 12088 states and 16897 transitions. [2025-03-16 19:33:47,694 INFO L78 Accepts]: Start accepts. Automaton has 12088 states and 16897 transitions. Word has length 179 [2025-03-16 19:33:47,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:47,695 INFO L471 AbstractCegarLoop]: Abstraction has 12088 states and 16897 transitions. [2025-03-16 19:33:47,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:47,695 INFO L276 IsEmpty]: Start isEmpty. Operand 12088 states and 16897 transitions. [2025-03-16 19:33:47,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2025-03-16 19:33:47,702 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:47,702 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:47,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-03-16 19:33:47,702 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:47,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:47,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1998527343, now seen corresponding path program 1 times [2025-03-16 19:33:47,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:47,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844815347] [2025-03-16 19:33:47,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:47,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:47,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-03-16 19:33:47,731 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-03-16 19:33:47,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:47,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:48,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:48,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:48,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844815347] [2025-03-16 19:33:48,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844815347] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:48,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:48,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-03-16 19:33:48,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080179431] [2025-03-16 19:33:48,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:48,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-16 19:33:48,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:48,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-16 19:33:48,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2025-03-16 19:33:48,295 INFO L87 Difference]: Start difference. First operand 12088 states and 16897 transitions. Second operand has 18 states, 18 states have (on average 9.944444444444445) internal successors, (179), 17 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:50,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:50,446 INFO L93 Difference]: Finished difference Result 40446 states and 56315 transitions. [2025-03-16 19:33:50,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-03-16 19:33:50,446 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 9.944444444444445) internal successors, (179), 17 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 179 [2025-03-16 19:33:50,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:50,479 INFO L225 Difference]: With dead ends: 40446 [2025-03-16 19:33:50,479 INFO L226 Difference]: Without dead ends: 32609 [2025-03-16 19:33:50,493 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=385, Invalid=2165, Unknown=0, NotChecked=0, Total=2550 [2025-03-16 19:33:50,494 INFO L435 NwaCegarLoop]: 393 mSDtfsCounter, 2372 mSDsluCounter, 4044 mSDsCounter, 0 mSdLazyCounter, 4129 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2372 SdHoareTripleChecker+Valid, 4437 SdHoareTripleChecker+Invalid, 4157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 4129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:50,494 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2372 Valid, 4437 Invalid, 4157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 4129 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-16 19:33:50,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32609 states. [2025-03-16 19:33:50,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32609 to 12196. [2025-03-16 19:33:50,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12196 states, 12195 states have (on average 1.3965559655596556) internal successors, (17031), 12195 states have internal predecessors, (17031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:50,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12196 states to 12196 states and 17031 transitions. [2025-03-16 19:33:50,850 INFO L78 Accepts]: Start accepts. Automaton has 12196 states and 17031 transitions. Word has length 179 [2025-03-16 19:33:50,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:50,850 INFO L471 AbstractCegarLoop]: Abstraction has 12196 states and 17031 transitions. [2025-03-16 19:33:50,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.944444444444445) internal successors, (179), 17 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:50,850 INFO L276 IsEmpty]: Start isEmpty. Operand 12196 states and 17031 transitions. [2025-03-16 19:33:50,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2025-03-16 19:33:50,860 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:50,861 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:50,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-03-16 19:33:50,861 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:50,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:50,861 INFO L85 PathProgramCache]: Analyzing trace with hash -298801393, now seen corresponding path program 1 times [2025-03-16 19:33:50,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:50,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584542646] [2025-03-16 19:33:50,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:50,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:50,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-03-16 19:33:50,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-03-16 19:33:50,897 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:50,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:51,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:51,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:51,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584542646] [2025-03-16 19:33:51,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584542646] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:51,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:51,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-16 19:33:51,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372784806] [2025-03-16 19:33:51,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:51,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-16 19:33:51,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:51,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-16 19:33:51,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-16 19:33:51,294 INFO L87 Difference]: Start difference. First operand 12196 states and 17031 transitions. Second operand has 13 states, 13 states have (on average 13.76923076923077) internal successors, (179), 12 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:51,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:51,988 INFO L93 Difference]: Finished difference Result 40722 states and 56586 transitions. [2025-03-16 19:33:51,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-16 19:33:51,988 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 13.76923076923077) internal successors, (179), 12 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 179 [2025-03-16 19:33:51,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:52,015 INFO L225 Difference]: With dead ends: 40722 [2025-03-16 19:33:52,015 INFO L226 Difference]: Without dead ends: 28563 [2025-03-16 19:33:52,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2025-03-16 19:33:52,028 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 2237 mSDsluCounter, 1640 mSDsCounter, 0 mSdLazyCounter, 1591 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2237 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 1602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:52,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2237 Valid, 1913 Invalid, 1602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1591 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-16 19:33:52,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28563 states. [2025-03-16 19:33:52,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28563 to 28332. [2025-03-16 19:33:52,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28332 states, 28331 states have (on average 1.376407468850376) internal successors, (38995), 28331 states have internal predecessors, (38995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:52,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28332 states to 28332 states and 38995 transitions. [2025-03-16 19:33:52,334 INFO L78 Accepts]: Start accepts. Automaton has 28332 states and 38995 transitions. Word has length 179 [2025-03-16 19:33:52,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:52,334 INFO L471 AbstractCegarLoop]: Abstraction has 28332 states and 38995 transitions. [2025-03-16 19:33:52,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.76923076923077) internal successors, (179), 12 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:52,334 INFO L276 IsEmpty]: Start isEmpty. Operand 28332 states and 38995 transitions. [2025-03-16 19:33:52,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2025-03-16 19:33:52,351 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:52,351 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:52,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-03-16 19:33:52,351 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:52,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:52,351 INFO L85 PathProgramCache]: Analyzing trace with hash 369387845, now seen corresponding path program 1 times [2025-03-16 19:33:52,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:52,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189225662] [2025-03-16 19:33:52,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:52,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:52,363 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-03-16 19:33:52,392 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-03-16 19:33:52,393 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:52,393 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:52,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:52,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:52,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189225662] [2025-03-16 19:33:52,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189225662] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:52,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:52,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-03-16 19:33:52,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916481050] [2025-03-16 19:33:52,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:52,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-16 19:33:52,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:52,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-16 19:33:52,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2025-03-16 19:33:52,742 INFO L87 Difference]: Start difference. First operand 28332 states and 38995 transitions. Second operand has 12 states, 12 states have (on average 15.0) internal successors, (180), 11 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:53,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:53,640 INFO L93 Difference]: Finished difference Result 53989 states and 74555 transitions. [2025-03-16 19:33:53,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-16 19:33:53,640 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.0) internal successors, (180), 11 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 180 [2025-03-16 19:33:53,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:53,680 INFO L225 Difference]: With dead ends: 53989 [2025-03-16 19:33:53,680 INFO L226 Difference]: Without dead ends: 43655 [2025-03-16 19:33:53,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2025-03-16 19:33:53,698 INFO L435 NwaCegarLoop]: 331 mSDtfsCounter, 1259 mSDsluCounter, 1824 mSDsCounter, 0 mSdLazyCounter, 1813 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 2155 SdHoareTripleChecker+Invalid, 1837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:53,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1259 Valid, 2155 Invalid, 1837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1813 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-16 19:33:53,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43655 states. [2025-03-16 19:33:54,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43655 to 28332. [2025-03-16 19:33:54,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28332 states, 28331 states have (on average 1.376407468850376) internal successors, (38995), 28331 states have internal predecessors, (38995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:54,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28332 states to 28332 states and 38995 transitions. [2025-03-16 19:33:54,179 INFO L78 Accepts]: Start accepts. Automaton has 28332 states and 38995 transitions. Word has length 180 [2025-03-16 19:33:54,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:54,179 INFO L471 AbstractCegarLoop]: Abstraction has 28332 states and 38995 transitions. [2025-03-16 19:33:54,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.0) internal successors, (180), 11 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:54,180 INFO L276 IsEmpty]: Start isEmpty. Operand 28332 states and 38995 transitions. [2025-03-16 19:33:54,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2025-03-16 19:33:54,201 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:54,202 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:54,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-03-16 19:33:54,202 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:54,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:54,202 INFO L85 PathProgramCache]: Analyzing trace with hash 496616796, now seen corresponding path program 1 times [2025-03-16 19:33:54,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:54,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894241648] [2025-03-16 19:33:54,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:54,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:54,218 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-03-16 19:33:54,248 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-03-16 19:33:54,248 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:54,248 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:54,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:54,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:54,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894241648] [2025-03-16 19:33:54,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894241648] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:54,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:54,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-03-16 19:33:54,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635457702] [2025-03-16 19:33:54,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:54,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-16 19:33:54,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:54,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-16 19:33:54,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-03-16 19:33:54,732 INFO L87 Difference]: Start difference. First operand 28332 states and 38995 transitions. Second operand has 12 states, 12 states have (on average 15.0) internal successors, (180), 11 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:55,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:55,208 INFO L93 Difference]: Finished difference Result 38059 states and 52473 transitions. [2025-03-16 19:33:55,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-16 19:33:55,208 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.0) internal successors, (180), 11 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 180 [2025-03-16 19:33:55,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:55,233 INFO L225 Difference]: With dead ends: 38059 [2025-03-16 19:33:55,233 INFO L226 Difference]: Without dead ends: 28358 [2025-03-16 19:33:55,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2025-03-16 19:33:55,245 INFO L435 NwaCegarLoop]: 497 mSDtfsCounter, 807 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:55,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 3108 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-16 19:33:55,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28358 states. [2025-03-16 19:33:55,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28358 to 28356. [2025-03-16 19:33:55,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28356 states, 28355 states have (on average 1.3765120789984129) internal successors, (39031), 28355 states have internal predecessors, (39031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:55,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28356 states to 28356 states and 39031 transitions. [2025-03-16 19:33:55,655 INFO L78 Accepts]: Start accepts. Automaton has 28356 states and 39031 transitions. Word has length 180 [2025-03-16 19:33:55,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:55,655 INFO L471 AbstractCegarLoop]: Abstraction has 28356 states and 39031 transitions. [2025-03-16 19:33:55,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.0) internal successors, (180), 11 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:55,655 INFO L276 IsEmpty]: Start isEmpty. Operand 28356 states and 39031 transitions. [2025-03-16 19:33:55,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2025-03-16 19:33:55,677 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:55,677 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:55,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-03-16 19:33:55,677 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:55,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:55,678 INFO L85 PathProgramCache]: Analyzing trace with hash -238769732, now seen corresponding path program 1 times [2025-03-16 19:33:55,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:55,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589909865] [2025-03-16 19:33:55,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:55,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:55,693 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 181 statements into 1 equivalence classes. [2025-03-16 19:33:55,711 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 181 of 181 statements. [2025-03-16 19:33:55,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:55,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:55,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:55,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:55,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589909865] [2025-03-16 19:33:55,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589909865] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:55,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:55,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-16 19:33:55,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094179322] [2025-03-16 19:33:55,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:55,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-16 19:33:55,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:55,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-16 19:33:55,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-16 19:33:55,963 INFO L87 Difference]: Start difference. First operand 28356 states and 39031 transitions. Second operand has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:56,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:56,503 INFO L93 Difference]: Finished difference Result 86653 states and 119012 transitions. [2025-03-16 19:33:56,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-16 19:33:56,503 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2025-03-16 19:33:56,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:56,558 INFO L225 Difference]: With dead ends: 86653 [2025-03-16 19:33:56,558 INFO L226 Difference]: Without dead ends: 58397 [2025-03-16 19:33:56,583 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2025-03-16 19:33:56,583 INFO L435 NwaCegarLoop]: 274 mSDtfsCounter, 715 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:56,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 1476 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-16 19:33:56,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58397 states. [2025-03-16 19:33:57,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58397 to 57463. [2025-03-16 19:33:57,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57463 states, 57462 states have (on average 1.3624308238488043) internal successors, (78288), 57462 states have internal predecessors, (78288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:57,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57463 states to 57463 states and 78288 transitions. [2025-03-16 19:33:57,145 INFO L78 Accepts]: Start accepts. Automaton has 57463 states and 78288 transitions. Word has length 181 [2025-03-16 19:33:57,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:33:57,145 INFO L471 AbstractCegarLoop]: Abstraction has 57463 states and 78288 transitions. [2025-03-16 19:33:57,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:57,146 INFO L276 IsEmpty]: Start isEmpty. Operand 57463 states and 78288 transitions. [2025-03-16 19:33:57,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2025-03-16 19:33:57,184 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:33:57,184 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:33:57,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2025-03-16 19:33:57,184 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:33:57,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:33:57,185 INFO L85 PathProgramCache]: Analyzing trace with hash -123894596, now seen corresponding path program 1 times [2025-03-16 19:33:57,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:33:57,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059710700] [2025-03-16 19:33:57,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:33:57,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:33:57,199 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-03-16 19:33:57,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-03-16 19:33:57,212 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:33:57,212 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:33:57,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:33:57,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:33:57,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059710700] [2025-03-16 19:33:57,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059710700] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:33:57,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:33:57,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-03-16 19:33:57,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212942084] [2025-03-16 19:33:57,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:33:57,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-16 19:33:57,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:33:57,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-16 19:33:57,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2025-03-16 19:33:57,589 INFO L87 Difference]: Start difference. First operand 57463 states and 78288 transitions. Second operand has 12 states, 12 states have (on average 15.166666666666666) internal successors, (182), 11 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:33:58,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:33:58,615 INFO L93 Difference]: Finished difference Result 109492 states and 149607 transitions. [2025-03-16 19:33:58,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-16 19:33:58,615 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.166666666666666) internal successors, (182), 11 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2025-03-16 19:33:58,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:33:58,702 INFO L225 Difference]: With dead ends: 109492 [2025-03-16 19:33:58,702 INFO L226 Difference]: Without dead ends: 81602 [2025-03-16 19:33:58,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2025-03-16 19:33:58,739 INFO L435 NwaCegarLoop]: 315 mSDtfsCounter, 1286 mSDsluCounter, 1705 mSDsCounter, 0 mSdLazyCounter, 1729 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 1754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-16 19:33:58,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1286 Valid, 2020 Invalid, 1754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1729 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-16 19:33:58,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81602 states.